Combined telegraph relay and telephone



` Y w-RqGARNER@ f COMBINED"DELELGMPHl RELAY AND TELEPHONE g Filed Jan. zo, -1'920 Hl w ' Arron/vers 3 Sheets-Shet' 2 I l y v y 1w. R. aAFeNlazre COMBINED TELEGRAPH RELAY vANDV TELEPHQNB Filed Jan. 2o; i920' -s'snee-ts-snefevfs *1* f WITNESSES 4- S24 UUR/vim Patented oct. 13', 1925.

:tint-ren i STATE s #WILLIAM meenemen, `en rmtnsymnma, Asstenoe onpnnronn'rn iro .CHARLES meeneem AND vmanronrvrn,lrreA.r..aones, Boa-H or ywesignieren,

DSTRICT '0F .CGLMBA.

COMBINED TELEGRAPH REMY AND TELEPHONE.

Appncanon inea yJanuaryeo;:1920, serial no. 352,770.

To all whom t may concern." l

4Be it knownfthat 1, Wimmer/IR. Gaiman,

afeitizen of the United States', and a residento't Erie, in the county et Erie and State E of- Pennsylvania, have inventedeertain new and useful :Improvements iniCoriibinetl Tellegraph Relays .and Telephones, of which 'the following is a speciiieation. y

My jinvention relates v'to improvements 'in 1.1 the arts of telephonyy and telegraphy, and it4 consistsl in 'the OnStruGtiOnS, combinations' and .arrangements lherein described and Claimed. f One ofthe foremost objects ot my inven- -J tion is toprovidel an instrument, hereinafter designated th'e relay, which hasa telephone and telegraph key combined therein in lsuch 'a' `manner thateit'her l*may 'he employed 'in transmitting intelligeneeover a single metallie line, y'the earth' being used as a return. conductor. v

further object of the invention lis toprovide a telephone and telegraph key yin loombination to yco'nstitiite va single instrument "5 for the purpose named above.

k,A further"object of theui'nvention 'is Vto provideia'n .'instruin'entpr relaywherein a telephone and telegraph key 'are y`'eomhined, there beinga sound-,prooffcompartment in' which 'thel `key operates, so that fthe 4sounds common to the operation eilaf telegraph i'n'if str li'lnentJ may ndtbe :heardtowdisturb othersV using the telephone or 'other ysimilar instru!l ments inthe same froom.l y if. 'l A further object ofthe inventionz is tol provide an improved systeinofl transmitting" intelligence, yeorfnprising in leo.mbitnation a single metallic line anda combined tele#4 phone and telegraph instrument ineonne@ tion withthat line, sothat ,themodeof cdmmunieaton common to each-may he separately employed whenudesined,

rilvOther .objects and .advantages will appear in? the-following specification, reference bef ing had -tofthe laceomp'anyii1g drawings, 'in which y j Figure 1 is aperSpeCtiVe'view ofthe imiproved instrument or relay,

on theswitoh in thenpper sound-prooi telegraph key compartment,

VFigure, 3. is: aplan wiew. oftheinstrument, Figure 4.- is` a longltudinal section thereof,

partment the telegraph key 4 works. *'lh'e` Compartment is madev sound-prooi? by means of vthe rubber or other cof-ver' 5, which is at 6 for opening-` fand. lclosing yand provided with a catch 7 at the "front,v

EThe key 4 yis the same in clo-nstrnetiona's any ordinary telegraph key, vits nfiagnet*8` being located' in the lower eon'ipartnient, hiit the vvpole pieces of the magnet projecting thrortg'h `so las to aet on the key, as 'clearly shown in vFit'fgures y:2' vand When the pfr'ol er veonnefetionsare made, as deserihed fnl vy in 5the"op"eration di the invention, teleiiaphie impulses entering over VJthe 'line L in Figure. 5, serve 'to tattraet' the arma-ture y9 ofthe keyv thereby causing the key to'faet as a sounder. "A sunder as, yan independent instrument, vis dispensed within this infi-1 P'f'dflely- Minet-11' 'the key a. ena .switch-re fmove ne 'ver' 5,nhiitv in order :to prevent the lslotsclos'ed at 'all times. -The key i moves' vertieally while 'the switch 10 moves horizontally and 'in order .that the eover 5 may be 'opened without Carrying 'the switch-10 with it 'the slot '10 has a hott-om outlet I10"y whieh aiiords,passage forthe switch. The l'eyffi (seefFig. 5)' has also proper eontatf making points, "the1e being a wire l?) runniiig from thepivot off the key to one of the Ir/agneteoilsgfand a wire '[14 running 'from n A I y, thev Contact 15 to the ground connection. 'Figure 2 1s '.a ydetail 'oi'osswsectlon on the l1nef22of Figure .51',illustrating 'th'e sleeve" ,head-piece oaries the lreceiver :19 and .trans` mitter 20, the .purpose ofthe arrangement' 'iev Siete le "ana ioa 1in.- aiejffent weitet" illustrated in Figure 1 being, to provide a combined receiver and transmitter which can be conveniently mounted on the head of the operator in using the instrument. appears more fully below, it i's'v'necessaryV to raise the hook 17 when telegraphic impulses enter the instrument, a cam 21 with a Engerpiece 22 being employed for this purpose should the head-piece be left on the hook for any reason, but ordinarily the head-piece lis applied to the operators head sov that he can hear said impulses which are supposed not to otherwise escape from the compartment 3.

Multiple connector plates 23, 24, suitably insulated from each other and mounted in the open side 2 vof the base 1,are employed for melting the connection of various eXtension devices to the relay, as for example, the switchboard S, illustrated in Figure 5. The conductor 25 of the head-piece 18, is also connected to a pair of the screws of the plates 23, 24.

Ringing mechanism 26, including the bells 27, forms part of the telephone feature of the improved instrument. This ringing mechanism also includes the magnets 28 in Figure 5. Attention is now directed to the wiring in Figure 5.

Only a single metallic line L is employed. Various instruments of the various stations are grounded s0 that the earth forms the return conductor. As many branches similar to the branch 29 in Figure 5, are employed as there are stations along the line. A connection 30 from the branch 29 runs to the central movable Contact 31 which is moved either into engagement with the contact 32 at the left or 33 at the right bythe telephone hook 17. i

When the hook 17 is lifted either by turning the cam 21 into the lifting position with the head-piece 18 still on the hook, or by removing the headpiece, at which time a spring which forms a part of the hook mechanism, lifts it, connection is made with wir'ei34 which runs to the binding screw 37 on the plate 24, opposite to the binding screw 38 to which the branch 29 is connected as clearly shown in Figure 5. A wire runs from the contact 32 to one of the coils of the magnet 28, the other coil being grounded at 36.

Wires 39, 40` are embodied in the conductor 25, and are connected to the receiver 19 and transmitter 20, both of which are of an ordinary construction as clearly illustrated. Other wires 41, 42 run from the screws' 37, 38 and are respectively connected to the wires 14, 13 which lead to the telegraph'.

magnets 8.

The operation.

Assume the head-piece 18 to be hung on the telephone hoot: 17 and therefore the central movable contact 31 in engagement with the left contact 32.

The operator at' i some station along the linel L (St for example), desiring to communicate with the station illustrated in Figure 5, presses a suitable ringingv button," or better l still, switch -43 in a wire 44 which connects the battery the current returning to the sending station S through the ground. The bells 27 are thus made to ring and the opera-tor of the home station apprised of the telephone call,

Upon removing the head-piece 18 from the telephone hook 17, the bell ringing circuit is broken at the contacts 31, 32, since the contact 31 follows the pendent portion of the hook 17, which in turn rises into the position shown in Figure 5.

The talking circuit, being now completed, is as follows: From battery b to line L, over branch 29, wire 30, central movable Contact 31, right contact 33, wire 34, screw 37, wire 39 to the instruments 19, 2O of the head-piece 18, returning via wire 40, screw 38 to ground G, Othereafter returning to the sending station St via. the ground plate C. It must also be observed that the wire 29 between the connection 30 and screw 38, has a switch Sw which is open when telephoning and closed only when thetele graph instrument is used either in receiving or sending telegraphic impulses.`4 Under other conditions the switch is opened to the ground connecting position illustrated in full lines.

1n sending telegraph impulses, the circuit is as follows: Upon depression of the key 4, current `fio-ws from the positive pole of the battery B, over wire 14 toI contact 15, through the key to wire 13, over wire 42 to screw 38, over wire 29, through switch Sw whichv is then closed in the dotted line position, continuing over wire 29 to line L, reaching the remote station St where it passes over wire 29, switch Sw, wires 29 and 42 to magnets 8, thence to ground via wire 45 and returning to the negative pole of the battery B via the ground connect-ions. A switch 46 in 'theground wire 45 is closed at thereceiving station S but should be open at the sending station to zwoid'locally shunting the sending impulses to ground. In both sending and receiving telegraph, the impulses lof the sending key will be heard on vall ,telephone receivers 19, including that,- of the'sending operator,'current being shunted thereto at the screw 38 at the transmitting station and the wire 30y at the receiving station.

In receiving telegraphic impulses, the circuit is as follows: From the remote station SST Y j it being observed ethat-iwlien 'fsuclifimpulses V areireceived, the ;lio*ole217f.isirai-sedbymeansf hezcainf-Ql; .in erderitoipreveiit'tlie?bells 5 from iringingeor Hsounding I at each im! Y pulse, continuing over =.wire:29 tov screw :88 f where the current divides,-ra;part .traveling over ewilrer'O. itozthe' head-piece :instru-.ment p; vTand the other part continuing over vwire I 10 L2 4Lto"isounderAv magnet 5:8 .a d :from Athence returning to lthe lreinote station vila -ftlie i, ground linelilfi. 'The ndivided portion/of euri-ent '.fiowingv toi'itlie .head-piece instru-- ment 1.8- e returns via' wirel 9 9, :screw 37 c. and wiredlto Ltlie ground connection l-ijead and. listen to: tlie :telegraphidsounds? yprie duced :gbyftliei attraction :oi 4the :armature 9' 't libeing remember-.edithatitliis `'port onxei Y -tlieinie ch'anism is housediin: ithe. sound-prooi compartmentgjjfroni' iwhicli; no: soundsV .can

v1 hejadepieee :18ers applied.

The advantages gofptli-.e'y invention may be .terial. VIn view of the fact y.that in my invention both they telephoneV` and telei's'becomes posible to use a single metallic i line for the double purpose of telegraphing and telephoning.

" kl- The use of a sounder as an yindepei'identinstrument, is ,also entirely dispensed with,

foi? aV sounder when used as above described.

2A' feature of great convenience resides in:y

the compactness of the instrument,4 which :takes up but little room.

rIn' thel operation of sending. v'and' receiving," a

the instrument; in considerable amount of energy is saved by reason'of the fact.: that the sounder-is embodied in the" key, thereby avoiding the customary syn-l chronous movement of the sounder with the key in sending, this requiring a great'deal v f "of/current. Also' the relatively slight move-l y t 'v `ment of the key-sounder avoids the present 50' expenditure of` energy now necessarily wasted in pulling the ordinary sounder thanl that traversed by theordinary key. 'c While the vconstruction and, arrangement of the improved combined telephone and claimed, that oi''v a generally preferred form, obviously modiiications and changes v ,can -beinade ywithout departing from the spirit of the' invention or the scope of the claims. v

'i I claim g g '1'. An electrical instrument comprising 1 an kopen base with a sound-proof compart-v 'ineiit, a sub-station telephone set associated Y 'igiene/rz i 1 The operatorrmaywpla'ce the,v headp'ie'celon his" issue and hence acannot be heard unless tlie"V 'v brieiiy considered.l e'llheguse oifbuta 'single inet-allieihneLreffects Vzie-great saving in magraph instruments are combined in one, ,it

alternately the telegraph key t being provided with then larmature 9 ,which will serve the purpose'v through a distance'four or five times greater' telegraph relay as herein described and.

with' i,the '/l/ .'serincluding :ringing ,mec-ha* contained. l erelcvy.;and..4 anisni finclu'di l21agrieta.-c( )ntaiin.ed in :the base .with p'olepieces :projectingfinto- :said compartment, thevtelegraph key `*bef ei'atively .located .in said 1- comparti cooperation withV said Apole pieces.

elegraphingiine li- 2. telegraph instrumentincludingzarleyv,c

a sound-prooi compartment ihousingi afipior# tioinrotlieikey and provided with an opening through ywhich the :key'protrudes,.fand

means preventing;theescape of. sounds from' 'y the compartment :where ythe keyiprotrudeaf including al ,suitable `sleeve .carried fthe keyand covering'- A tliekey opening. Y 3. rihe A`'combination Yof fa v single metallic lineiaasubstationiteleplioneset withegroundj i ff ed ringing' orialringing :iinpulsefrom fthe :lii

nieclianism;` in. .normal .readiness- *.vitlirit'lie ringing-.mechanismrof 'fthe-tele@V grounded @telegraph .instrument iconiibi edl "phone setinormall-y unatected byxaringirig impulse, but, :provi-ded.y v vitliswitch nieaifisfV tor conveyingtelegraphic impulses ifiointhe line 1 to lsaid zinstrement.:v and means .fr )iffdi-fsconnecting rsaid ringing mechanism :wat:v the time when said switch meansis actuated.l Y

L 4c. The combination of a single metallic line, a substation telephone set,l a conne'c 'tio-n by' wliiclisaid setvisV joined to the "line,l

and a hook switch provided withcontacts 'for keeping a grounded ringing mechanism.

normally in readiness vfor a ringing vimpulse from the line; a telegraph instrument in` 'cluding 'an electro-magnetically actuated -key-armature,y normally una'dectedl by a ringing impulse7 but provided with switch means for joining said connection to said instrument rfor receiving telegrapliic. iinf pulses; and means embodied in the tele-vvk phone set preventing energization oivthe f ringing Ymechanisml by rsaid impulses. 5. The combination ofv asingle metallic.A

line, a-substation telephonev set, a connection -by which said' seti is joinedto kthe line, andv a hook switch provided with contact-s for keeping a groundedr ringing mechanism` normally .in readiness for a ringing impulse from the line; a telegraph vinstrument in- `cluding an electro-magneticallyy actuated key-armature normally unaffected by a ringing impulse7 but pro-vided with switch means for joining said connectio-n to said'l instru-ment for receiving telegraphic impulses, means embodied in the telephone. set

preventing energization yof the ringing mechanism by said impulses, and a sounds proofcompartment rhousing the telegraph*v Y instrument to prevent the esgape of *telg graphic sounds.

`6. The combination of a single metallic" line, a substation telephone set, a connec f ytion by Which said set is joined to theline,

and a hook switch provided with contacts for keeping a grounded ringingmechanism normally in readiness for a ringing impulse from the line; a telegraph instrument including an electro-magnetically actuated key-armature normally unaffected by a ringe ing impulse, but provided with switch means for joining said connection to said instrument for receiving telegraphic impulses, means embodied in the telephone set preventing energiZ-ation of the ringing mechanism by said impulses, a sound-proof compartment housing the telegraph instrument to prevent the escape of telegraphic sounds, and a head-piece included in the telephone set so connected to the telegraph instrument that said telegraphic sounds may be heard by applying the head-piece.

7 The combination of a single metallic line, and a `single .station instrument in which a substation telephone set and telegraph instrument are combined, said set including a telephone hook switch closing a circuit from the line over a branch connection through a grounded ringing mecha` nism, a head-piece including a receiver and transmitter, being in electrical connection 'or operation when the hook switch is lifted,

the telegraph instrument comprising electro-magnets, with a switch for normal disconnection from said branch connection, closable to direct telegraphic impulses to said magnet when the head-piece is hung on the hook switch, and a telegraph key with an armature above said magnet constituting both the key of the sending means and the sounder.

8. An electrical instrument comprising a combined sub-station tele hone set and telegraph, a hook switch and ringing mechanism associated with the telephone set, a branch line entering the instrument, two connections leading from said line, one to the receiving mechanism, the other to the telegraph, contacts included in said connections controlled by the movement of the hook switch to disconnect the telegraph when the telephone set is employed, and a cam for raising the hook switch of the telephone when the first switch is closed and the telegraph is employed, to prevent the telegraphic impules energizing the ringing mechanism of the telephone set.

WILLIAM R. GARNIER. 

